The Linaro Toolchain Working Group (TCWG) is pleased to announce the 2017.06 snapshot of the Linaro GCC 7 source package.

The GCC 7 series introduced an ABI change for ARM targets by fixing a bug (present since GCC 5, see link below) that affects conformance to the procedure call standard (AAPCS). The bug affects some C++ code where class objects are passed by value to functions and could result in incorrect or inconsistent code being generated. If the option -Wpsabi is enabled (on by default) the compiler will emit a diagnostic note for code that might be affected by this ABI change.

This monthly snapshot1 is based on FSFGCC 7.1+svn249190 and includes performance improvements and bug fixes backported from mainline GCC. The contents of this snapshot will be part of the 2017.08 stable2 quarterly release.